EP 3910783 A1 20211117 - POWER CONVERSION DEVICE, ROTATING MACHINE SYSTEM, AND DIAGNOSIS METHOD
Title (en)
POWER CONVERSION DEVICE, ROTATING MACHINE SYSTEM, AND DIAGNOSIS METHOD
Title (de)
LEISTUNGSUMWANDLUNGSVORRICHTUNG, ROTIERENDES MASCHINENSYSTEM UND DIAGNOSEVERFAHREN
Title (fr)
DISPOSITIF DE CONVERSION DE PUISSANCE, SYSTÈME DE MACHINE ROTATIVE, ET PROCÉDÉ DE DIAGNOSTIC
Publication
Application
Priority
- JP 2019002459 A 20190110
- JP 2019046562 W 20191128
Abstract (en)
This power conversion device has: a current measurement unit for measuring phase current; a current vector calculation unit for calculating a current vector by performing 3-phase to 2-phase conversion on the phase current; an amount-to-be-analyzed calculation unit for calculating, on the basis of the current vector, an amount to be analyzed; and a feature amount waveform extraction unit for extracting a waveform in a specific frequency range on the basis of the amount to be analyzed.
IPC 8 full level
H02M 7/48 (2007.01)
CPC (source: EP US)
G01R 31/343 (2013.01 - US); H02H 5/041 (2013.01 - US); H02M 1/0009 (2021.05 - EP US); H02M 5/22 (2013.01 - EP); H02P 29/024 (2013.01 - EP); H02P 29/0241 (2016.02 - US); H02P 29/032 (2016.02 - EP)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
EP 3910783 A1 20211117; EP 3910783 A4 20221026; CN 113316889 A 20210827; CN 113316889 B 20231215; JP 2020114084 A 20200727; JP 7198089 B2 20221228; TW 202026783 A 20200716; TW I728626 B 20210521; US 2022229113 A1 20220721; WO 2020144965 A1 20200716
DOCDB simple family (application)
EP 19909521 A 20191128; CN 201980087621 A 20191128; JP 2019002459 A 20190110; JP 2019046562 W 20191128; TW 108147796 A 20191226; US 201917417453 A 20191128